/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.wsinfra.wsrm;

import cgl.narada.wsinfra.wsa.AddressingHeaders;

/** This is a utility class which encapsulates information regarding ALL
    possible WSRM exchanges. This class can then be used at either the
    source/sink to determine if the exchange targetted to it is indeed
    the right one. The class contains simply boolean operations to
    determine the type of the WSRM exchange or if this is in fact even a
    WSRM exchange to begin with.

    @author Shrideep Pallickara
    $Date: 2004/12/27 04:00:39 $
    $Revision: 1.1 $
*/

public interface WsrmExchangeInfo {

  /** Checks to see if the Sequence element is available */
  public boolean hasSequence();

  /** Checks to see if the AckRequested element is available */
  public boolean hasAckRequested();

  
  /** Checks to see if the SequenceAcknowledgement element is available */
  public boolean hasSequenceAcknowledgement();


  /** Checks to see if this is a create sequence exchange */
  public boolean isCreateSequence();
 
  
  /** Checks to see if this is a create sequence response exchange */
  public boolean isCreateSequenceResponse();


  /** Checks to see if this is a terminate sequence exchange */
  public boolean isTerminateSequence();
  
  
  /** Retrieve the addressing headers that were associated with this exchange*/
  public AddressingHeaders getAddressingHeaders();

  
  /** Checks to see if this is a valid exchange */
  public boolean isValidExchange();
  

  /** If this is an invalid exchange, this method reports all the problems
      contained within this exchange. */
  public String getProblemsWithExchange();
}


